Two-year-old baby nosebleeds should be carefully observed, there are usually the following possibilities: 1st, to see if the child has a history of trauma, two-year-old baby curious, walking around, collision may cause damage to the capillaries of the nasal mucosa, resulting in bleeding; 2nd, to pay attention to whether the child has chronic rhinitis, sinusitis, nasal discomfort, itchy, nails not cleanly clipped picking nostrils damage capillaries, can cause nosebleeds; 3rd, to pay attention to whether If there are frequent nosebleeds and bleeding spots on the body, we should pay attention to whether the nosebleeds are caused by coagulation dysfunction; 5th, if there are frequent nosebleeds or clinical symptoms such as nasal congestion, we should pay attention to local nasal problems, such as polyps, deviated septum, capillary problems, etc., which may occur repeatedly in children with nosebleeds.